1. Dr. Radu Alexandru Pintilie
THE BIRTH CANAL
Dr. Radu Alexandru Pintilie

2. THE BIRTH CANAL
- the bony pelvis -

3. The true pelvis is an obliqualy truncated, bent cylinder

4. The pelvis forms a bony ring through which the body weight is transmitted to the lower extremities

5. Sacroiliac syncondroses
Symphisys pubis
Sacrospinous ligament
Sacrotuberous ligament

6. Sacrospinous ligament
Sacrotuberous ligament

8. 5
1=11 cm 2=12.5 cm 3=13.5 cm 5= cm

9. PELVIC TYPES 1 - gynaecoid 2 - android 3 - platypelloid 4 - anthropoid

10. True conjugate
Diagonal conjugate – cm
Obstetrical conjugate ˃10 cm

11. 11.5 cm

12. 11 cm
9 cm

14. 1 – first plane of Hodge
2 – the descending cilinder( Pigeaud )
3 – the releasing triangle ( Fochier )

15. PELVIMETRY
The romb of Michaelis
The base of Trillat triangle

16. PELVIMETRY

17. PELVIMETRY

18. -soft tissues of the pelvis-
THE BIRTH CANAL
-soft tissues of the pelvis-

22. FETUS AT TERM
-fetus as a passenger-

31. The sacro-femural diameter (9 cm)
The sacro-pretibial diameter (12 cm)
The bitrohanterian diameter (9-10 cm)